The Yellow-crescent Blister Beetle (Pyrota insulata) is one of many species commonly called Blister Beetles. If squeezed these beetles may exude an irritant that will cause a blister on human skin. The first 6 shots here show a Yellow-crescent Blister Beetle on a Texas Bluebonnet in April, 2010, in Austin, Travis Co., Texas. These shots were taken with a Canon EOS 1D Mark IV and EF 300mm F/4 L IS lens and 2X extender and Canon 580 flash.